Buggy code:
public class ResultCollector extends AbstractListenerElement implements Serializable , NoThreadClone , Clearable , Remoteable , SampleListener , TestListener { private static final Logger log = LoggingManager . getLoggerForClass ( ) ; private static final long serialVersionUID = 23 ; private static final String TESTRESULTS_START = "<testResults>" ; private static final String TESTRESULTS_START_V1_1_PREVER = "<testResults<seq2seq4repair_space>version=\"" ; private static final String TESTRESULTS_START_V1_1_POSTVER = "\">" ; private static final String TESTRESULTS_END = "<//testResults>" ; private static final String XML_HEADER = "<?xml<seq2seq4repair_space>version=\"1.0\"<seq2seq4repair_space>encoding=\"UTF-8\"?>" ; private static final int MIN_XML_FILE_LEN = ( ( ResultCollector . XML_HEADER . length ( ) ) + ( ResultCollector . TESTRESULTS_START . length ( ) ) ) + ( ResultCollector . TESTRESULTS_END . length ( ) ) ; public static final String FILENAME = "filename" ; private static final String SAVE_CONFIG = "saveConfig" ; private static final String ERROR_LOGGING = "ResultCollector.error_logging" ; private transient DefaultConfigurationSerializer serializer ; private volatile transient PrintWriter out ; private boolean inTest = false ; private static Map files = new HashMap ( ) ; private Set hosts = new HashSet ( ) ; protected boolean isStats = false ; public ResultCollector ( ) { } private void setFilenameProperty ( String f ) { } public String getFilename ( ) { } public boolean isErrorLogging ( ) { } public void setErrorLogging ( boolean errorLogging ) { } public void setFilename ( String f ) { } public void testEnded ( String host ) { } public void testStarted ( String host ) { } public void testEnded ( ) { } public void testStarted ( ) { } public void loadExistingFile ( ) { } private static void writeFileStart ( PrintWriter writer , SampleSaveConfiguration saveConfig ) { } private static void writeFileEnd ( PrintWriter pw , SampleSaveConfiguration saveConfig ) { } private static synchronized PrintWriter getFileWriter ( String filename , SampleSaveConfiguration saveConfig ) throws IOException { } private static boolean trimLastLine ( String filename ) { } private void readSamples ( TestResultWrapper testResults ) throws Exception { } private Configuration getConfiguration ( String filename ) throws IOException , ConfigurationException , SAXException { } public void clearVisualizer ( ) { } public void sampleStarted ( SampleEvent e ) { } public void sampleStopped ( SampleEvent e ) { } public void sampleOccurred ( SampleEvent e ) { SampleResult result = e . getResult ( ) ; if ( ( ! ( isErrorLogging ( ) ) ) || ( ! ( result . isSuccessful ( ) ) ) ) { sendToVisualizer ( result ) ; if ( ( out ) != null ) { SampleSaveConfiguration config = getSaveConfig ( ) ; result . setSaveConfig ( config ) ; try { if ( config . saveAsXml ( ) ) { recordResult ( result ) ; } else { <START_BUG> String savee = OldSaveService . resultToDelimitedString ( result ) ; <END_BUG> out . println ( savee ) ; } } catch ( Exception err ) { ResultCollector . log . error ( "Error<seq2seq4repair_space>trying<seq2seq4repair_space>to<seq2seq4repair_space>record<seq2seq4repair_space>a<seq2seq4repair_space>sample" , err ) ; } } } } protected void sendToVisualizer ( SampleResult r ) { } private void recordResult ( SampleResult result ) throws Exception { } private String getSerializedSampleResult ( SampleResult result ) throws IOException , ConfigurationException , SAXException { } public void recordStats ( TestElement e ) throws Exception { } private synchronized boolean isResultMarked ( SampleResult res ) { } private void initializeFileOutput ( ) throws IOException { } private synchronized void finalizeFileOutput ( ) { } public void testIterationStart ( LoopIterationEvent event ) { } public SampleSaveConfiguration getSaveConfig ( ) { } public void setSaveConfig ( SampleSaveConfiguration saveConfig ) { } public void clearData ( ) { } }

Fix:
String savee = OldSaveService . resultToDelimitedString ( e ) ;